Ovary 5 Animals 4 Apoptosis 4 Cells, Cultured 4 Female 4 Follicular Atresia 4 Ovarian Follicle 4 Rats 4 Rats, Sprague-Dawley 4 animal cell 4 apoptosis 4 article 4 controlled study 4 diethylstilbestrol 4 female 4 nonhuman 4 prepuberty 4 priority journal 4 rat 4 Angiogenesis 2 Angiopoietin-1 2 Angiopoietins 2 Bucladesine 2 Caspase 3 2 Cell Proliferation 2 Culture Media, Serum-Free 2 DNA Fragmentation 2 DNA cleavage 2 DNA fragment 2 Diethylstilbestrol 2